Hi Sterling
The surf where you are staying is pretty constant due to the prevailing winds, however, it is what I call a 'short' surf.
That's to say that the waves are not high (maybe 2 to 3 feet) and the distance between each set of waves is quite narrow. This is likely to be due to the water out several hundred feet from the shore is relatively shallow and by the time the waves arrive at the shore they have lost much of their power.
If you look at photos 20, 21 and 22 here -
http://www.mytobago.info/aerial.php you'll get a good idea of the typical surf conditions
The bottom here is rocky and made mostly from coral, so a tackle graveyard if you're planning on fishing on the bottom.
Floatfishing or fishing lures is a less risky strategy.
Further to the West, towards Lambeau, the sea bed is sandy, but even shallower and can suffer from lots of suspended weed in the water.
The beach at Sand Point has good surf plenty of the time, but the sea bed is also very tough on tackle, being made up of coral slabs and ledges. Lure fishing is good here for tarpon, jacks and occational snook.
A less tackle-hungry section of surf beach is along at Grange beach, where jacks and tarpon are the most likely species during the day and moray, tarpon and small sharks at night.
Hope this info. helps
Steve
Take only photos - leave only footprints. I like that concept.